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The d:dicate™ 2011 Twin Diaphragm Cardioid Mic is a directional microphone. The distinctive sound of this microphone is well balanced. It bridges the gap between the extreme sound quality of the d:dicate™ Recording Microphone Series and our well-known d:screet™ Miniature Microphone Series.
Two opposite-facing miniature capsules are custom rebuilt inside this microphone. They are placed into a double-diaphragm, one-capsule composition. This combines the advantages of small capsules with the lower inherent noise achieved from a larger diaphragm area. These capsules provide fast impulse response and large frequency bandwidth. The capsules are loaded to the supreme d:dicate™ Microphone series preamps, which gives the sound more air and precision.
Specifications
| Directional pattern | Cardioid |
| Principle of operation | Pressure gradient, with interference tube |
| Cartridge type | Pre-polarized condenser, Twin Diaphragm Capsule |
| Frequency range | 20 Hz - 20 kHz |
| Frequency range, ±2 dB, at 30 cm (11.8 in) | 50 Hz - 17 kHz with 3 dB soft boost at 12 kHz |
| Sensitivity, nominal, ±2 dB at 1 kHz | 10 mV/Pa; -40 dB re. 1 V/Pa |
|
Equivalent noise level, A-weighted
|
Typ. 20 dB(A) re. 20 µPa (max. 23 dB(A)) |
| Equivalent noise level, ITU-R BS.468-4 | Typ. 33 dB (max. 36 dB) |
| S/N ratio (A-weighted), re. 1 kHz at 1 Pa (94 dB SPL) | Typ. 74 dB(A) |
| Total harmonic distortion (THD) | < 1% up to 137 dB SPL peak |
| Dynamic range | Typ. 117 dB |
| Max. SPL, peak before clipping | 153 dB |
| Switchable attenuator, filters etc. | 0 dB / -20 dB |
| Output impedance | 200 Ω |
| Minimum load impedance | 2 kΩ |
| Cable drive capability | 100 m (328 ft) |
| Output balance principle | Impedance balancing with Active Drive |
| Common mode rejection ratio (CMRR) | > 60 dB |
| Power supply (for full performance) | 48 V Phantom power (± 4 V) |
| Current consumption | 2.8 mA |
| Connector | XLR-3M. Pin 1: shield, Pin 2: signal + phase, Pin 3: - phase |
| Color | Matte black |
| Weight | 164 g (5.8 oz) |
| Microphone diameter | 19 mm (0.75 in) |
| Microphone length | 198 mm (7.8 in) |
| Maximum output voltage, RMS | > 5 V |
| Polarity | +V at pin 2 for positive sound pressure |
| Temperature range | -40°C to 45°C (-40°F to 113°F) |
| Relative humidity (RH) | Up to 90% |
